Sanden桑登
sandn.沙;沙子;沙滩;黄灰色vt.撒沙;打磨;以沙掩盖
sand-fixation plantation固沙林
sand pile of densification振动砂石桩
sandcontrol of gravel pack砾石充填防砂
sand preparation equipment[机] 砂处理设备
Sand collection of channel河道采砂
sand-carrying experiment携砂实验
sand cleaning-out device冲砂装置
sand and gravel foundation砂砾石地基
sand conveyor installation[机] 输砂设备
sand removal from sandy oil含砂原油除砂